Contents

Background

The Goon is an especially evil Goon Doc ghoul, seething with dark energy. When it attacks, the Goon has an eerie way of getting into a target Slugslinger’s head. But its thirst for control doesn’t stop there—the Goon is determined to conquer every cavern in Slugterra!

Ghoulgoyle - Hits an opposing slug and uses Dark Energy to transform them into a ghoul.

Darkcloak (unofficial name) - Hits an opposing slinger and drops them into a temporary coma, while it uses its Dark Energy to takeover their mind & body for its own purposes, and gives the person a zombie-like appearance until they're no longer needed. (This move is a combination of Creepsleep, Ghoulgoyle and Turncloak combined... see Goon Doc).

Enemies

Neutral

Trivia

It's unknown if all Goon Docs can do Darkcloaking and sense the ghouling process.

In Return of the Elementals he is seen working with the Darkbane and Dr. Blakk, plus hosting Will Shane, but it is unknown how he reached the Deep Caverns to ever get to them as the only slug shown to be able to punch a hole to the Deep Caverns is a Tempesto and the Ghouled Air Elemental.

He used to be a Guardian Slug before the Emperor ghouled him, however oddly enough it was revealed in Return of the Elementals that he won't transform into a regular Boon Doc. He will turn into a wrinkled up weakened state, and would eventually die, and the only way to cure him is more ghoul energy. A possible reason is that The Emperor ghouled it with so much Dark Energy that Doc isn't able to cure him (like he couldn't cure Dark Water without Fandangos).